Rare 'fire rainbow' stuns residents of Kuala Lumpur

This is the breathtaking moment a "fire rainbow" — more accurately known as a circumhorizontal arc — showed up to charm the people in Kuala Lumpur, Malaysia on May 28. A circumhorizontal arc is an optical phenomenon that belongs to the family of ice halos formed by the refraction of sun — or moonlight in plate-shaped ice crystals suspended in the atmosphere — typically in cirrus or cirrostratus clouds.

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